I got my FA 35/2 from Wing Shing in Mong Kok last November for $1950HKD, when they had it on special. It was HK stock, but I went the the Pentax distributor/office or whatever in Kowloon Bay the next day and changed it to an international one.
Here's a good price list for Pentax stuff in HK:
Pentax Price List (Editgrid) | ???
Unfortunately for you though, looks like the lowest recent price for the FA35/2 is around 2300HKD; the DCFever price says 1980HKD, but that was in Oct 08.
I'm still kicking myself for not getting more gear when I was also in HK in June last year, the exchange rate was about $1AUD : $7HKD, if not more.